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How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Cleaning can be a chore, but not with this sudsy experiment!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

In this activity your child will create their very own marble maze!

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this fun activity, your child will create their very own solar oven to bake s'mores!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this project students experiment with making music using only glasses of water.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.